TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Sports
Seattle Sounders FC vs. St. Louis City SC
kalshi
polymarket

Seattle Sounders FC vs. St. Louis City SC

Volume:
$533,241

Seattle

all

2 markets

Kalshi

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Apr 19, 2026

Closed: Apr 19, 12:30 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Seattle

View
100%
Yes 100¢No 0¢
—
N/A
$305,521
N/A
N/A
$185,636
Settled
Yes
polymarket

Seattle Sounders FC

100%
Yes 100¢No 0¢
—
N/A
$106,590
N/A
N/A
N/A
Settled
Yes
kalshi

Saint Louis

0%
Yes 0¢No 100¢
—
N/A
$45,540
N/A
N/A
$35,041
Settled
No
polymarket

St. Louis City SC

0%
Yes 0¢No 100¢
—
N/A
$28,090
N/A
N/A
N/A
Settled
No
kalshi

Tie

0%
Yes 0¢No 100¢
—
N/A
$26,394
N/A
N/A
$15,773
Settled
No
polymarket

Draw (Seattle Sounders FC vs. St. Louis City SC)

0%
Yes 0¢No 100¢
—
N/A
$21,105
N/A
N/A
N/A
Settled
No
Total markets: 6

Description

This event is for the upcoming MLS game, scheduled for Saturday, April 18, 2026 between Seattle Sounders FC and St. Louis City SC.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both Polymarket and Kalshi use identical resolution logic: the market resolves based on the official match outcome (win, loss, or draw) after 90 minutes plus stoppage time, with consistent handling of postponements and cancellations.Primary resolution logic: Official MLS statistics as recognized by the governing body or event organizers (mlssoccer.com); if unavailable within 2 hours of match conclusion, credible reporting consensus may be used.

Core resolution logic:

  • Polymarket St. Louis City SC win market resolves YES if and only if St. Louis City SC wins the match within 90 minutes plus stoppage time; otherwise NO.
  • Polymarket Seattle Sounders FC win market resolves YES if and only if Seattle Sounders FC wins the match within 90 minutes plus stoppage time; otherwise NO.
  • Polymarket draw market resolves YES if the match ends in a draw within 90 minutes plus stoppage time; otherwise NO.
  • Kalshi markets resolve YES for the outcome that occurs: Seattle win, Saint Louis win, or Tie.
  • Exactly one outcome (Seattle win, St. Louis win, or draw) will occur and resolve YES across the market group.
  • Extra time and penalties are excluded from resolution scope.

Edge cases & clarifications:

  • Match Postponement: If the game is postponed, all markets remain open until the match is completed and the final result is determined.
  • Match Cancellation: If the game is canceled entirely with no make-up game, Polymarket win markets (Seattle and St. Louis) resolve NO, and the draw market resolves YES. Kalshi markets would resolve based on the cancellation outcome as specified by Kalshi rules.
  • Resolution Timing: Resolution is contingent on official MLS statistics being published within 2 hours after match conclusion; if unavailable, credible reporting consensus is used as the fallback source.
Timing: Resolution occurs upon official publication of the final match result by MLS or governing body within 2 hours of match conclusion, or upon consensus of credible reporting if official statistics are delayed.Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.